A couple of suggestions. Its a bit too long, especially in the beginning. You spend too long showcasing the art, and the same art in different angles.

Too much fading and reducing opacity. Just do cuts, at the beginning, you notice the sharp change of scenes with cuts, but after a while, you don't notice it.

It would be nice, if you had English subtitles, so that people that don't know the language would understand it.And, while the artist is speaking you can cut back and forth between artist and the art, this will increase interest and make the video shorter.

Lastly, when the artist was turning the foil into a soccer ball, you could have taken pictures of the soccer ball being kicked and if you only took like 3 to 5 pictures at random intervals and sequenced them together, it would seem like more rapid fire, epic like....

Thank you mkabi.You gave me a couple of suggestions.All of them are very good and inspiring, I will follow suggested guideline in future I'm all new in are of video editing, but that is not an excuse.Will be better in future.Thank you one more time...